Caustics

Fisherman Hauling Crab Pot from Kelp Shelf Barcelona in along a kelp-fringed shelf near Barcelona

Fisherman Hauling Crab Pot from Kelp Shelf Barcelona

Sony a7R IV · along a kelp-fringed shelf near Barcelona

 Blue Hole Silhouette Over Waikiki Volcanic Drop-off in beside a volcanic drop-off near Waikiki, Honolulu

Blue Hole Silhouette Over Waikiki Volcanic Drop-off

Nikon D90 · beside a volcanic drop-off near Waikiki, Honolulu

 Aerial View of Tropical Coral Reef Underwater in beneath a reef ledge in tropical shallows near Zanzibar

Aerial View of Tropical Coral Reef Underwater

OM System OM-5 · beneath a reef ledge in tropical shallows near Zanzibar

 Silhouetted Sea Anemones in Australian Tide Pools in in Australia

Silhouetted Sea Anemones in Australian Tide Pools

Sony Alpha 33 · in Australia

 Giant Clam Vivid Mantle Coral Shallows Cairns in along a coral wall with blue water beyond near Cairns

Giant Clam Vivid Mantle Coral Shallows Cairns

Nikon FE · along a coral wall with blue water beyond near Cairns

 Frozen Lightning Over Submerged Sinkhole Reef in along a coral wall with blue water beyond near Denpasar

Frozen Lightning Over Submerged Sinkhole Reef

Panasonic Lumix DMC-G1 · along a coral wall with blue water beyond near Denpasar

 Stingray Eyes Peering from Italian Sand in in Italy

Stingray Eyes Peering from Italian Sand

Casio QV-10 · in Italy

 Surreal Reef Window View Through Crystal Water in beneath a reef ledge in tropical shallows near Stone Town

Surreal Reef Window View Through Crystal Water

Nikon D200 · beneath a reef ledge in tropical shallows near Stone Town

 Sailfish Slashing Through Bait Ball at Twilight in above a seagrass meadow near Osaka

Sailfish Slashing Through Bait Ball at Twilight

Leica M2 · above a seagrass meadow near Osaka